Base Fee
In Conflux, the block data queried from the RPC includes a baseFeePerGas field, which indicates the network's congestion status and determines the minimum fee per gas required for a transaction. This mechanism, introduced in the Conflux v2.4 hardfork as part of CIP-1559, is based on Ethereum's base fee model but adapted for Conflux's tree-graph block structure. Details of this adaptation are documented in CIP-1559 and CIP-137.